ISSN 2096-4498

   CN 44-1745/U

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Construction Technologies of Open TBM in Deepburied Rockburst Section with Soft and Hard Alternant Strata

  • ZHANG Zhaotai ,
  • YOU Sheng ,
  • FENG Guangliang ,
  • CHEN Zhu ,
  • CHEN Bingrui
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  • (1. Beijing UniConstruction Group Co., Ltd., Beijing 100029, China; 2. Beijing Vibroflotation  Engineering Co., Ltd., Beijing 100102, China; 3. State Key Laboratory of Geomechanics and Geotechnical  Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, Hubei, China)

Received date: 2018-12-29

  Revised date: 2019-04-10

  Online published: 2020-03-11

Abstract

In order to solve the problem of rockburst in TBM construction process, the characteristics of rockburst during TBM boring in soft and hard alternant strata of Himalayan region are studied and analyzed. Some rockburst avoidance tests have been carried out during construction, and a complete set of targeted construction method for rockburst mitigation is summarized. The methods include: (1) normalization of rockburst inspection, (2) combination of advance geological prediction and advanced treatment, (3) rationalization of supporting materials and supporting methods, and (4) dynamic adjustment of tunneling parameters. The methods applied to the following construction have achieved good effect. The results can provide reference for safe construction of TBM in similar strata in the future.

Cite this article

ZHANG Zhaotai , YOU Sheng , FENG Guangliang , CHEN Zhu , CHEN Bingrui . Construction Technologies of Open TBM in Deepburied Rockburst Section with Soft and Hard Alternant Strata[J]. Tunnel Construction, 2019 , 39(5) : 843 -850 . DOI: 10.3973/j.issn.2096-4498.2019.05.016

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